Feeding mechanism for sewing-machines.



E. F. DURAND. FEEDING MEOHANISM FOR SEWING MACHINES.

APPLICATION FILED APR. 1. 1901. I

' Patented Oct. 20, 1908.

2 SHBETSLSHEBT 1.

- E. r, DURAND. FEEDING MECHANISM FOR SEWING MACHINES.

APPLICATION FILED APE}; H501.

Patented Opt. 20, 1908.

2 slums-Shaw's.

; ing

UNITED .srA'r s PATENT OFFICE;

ERNEST rnnnn'n cn DURAND, or PARIS, FRANcE, A ssIeNoR TOVUNION sPEoiAL SEWING MACHINE 00,01 onIoAco, ILLINOIS, A CORPORATION OFYILLINOIS; I,

FEE ING MECHANISM FOR- SEWING-MACHINES.

Patented Oct. 20, 1908.

Application filed A rni, 1901. SerialNo. 53,826.

To all whom it may concern;

Be it known that I, ERNEST FREDEBIGK iDUR Nn, a: British subject, residing at Paris,

Department of the Seine, Republlc of France, have invented certain new and useful Improvements in Feeding Mechanism for Sewing-\lachines, of which the followa description, reference being had to the accompanying drawing, and to the letters and figures ofreference marked thereon.

)Iy invention relates to an improvement in sewing machines, and has especial referonce to the feeding mechanism thereof, whereby in the uniting of two pieces of fabrlc, one may be fed faster than or slightly ahead of the other, so that it will be gathered, ruffled, or slightly 'crimped before the stitches are passed through the goods, an auxiliary feed, pivoted on the main rocking feed bar and oscillated on its pivot in the movement thereof, being provided.

The particular object with which theimprovement was designed, is for use in con nection with the well known union special triple interlock machine, such as illustrated in the patent granted G. D. hfunsing, Octoher 10, 1893, Nb. 506,524, and patent granted L- i /l.uther, ()ctober 10th, 1893,,Noi 506,527. Tn the use of machines of this character fol-"sewing ribbed fabric to plain fabric, as

for instance, in sewing the cuffs of knit garments to the legs or arms thereof, considerable difficulty has been experlenced bv reason of the buckling of the ribbed fabrid; for in attaching ribbedto plain fabrics, the

rib has heretofore been stretched to the width of the plain fabric. This has given rise to the objection of puckering or-buckling of the rib after the goods have been sewed, and I have deviseda mechanism for ruflilng or fullin g in the plain fabric to. meet the Width of the ribbed fabric. In practice" in sewing rib tails to garments, 'as for in stance, on looping orturning off machines, it has been customary to place the plain fabric on the impaling pins and to stretch ;the'

ribbed fabric over the same. v 1

In the use of my device, instead oil-stretch- :ing the ribbed fabric, it may be pulled in to meet the width of the plain fabric. In other words, I do not wish to be limited to thefull ing in of any particularone, of the two fabrics. 1 1

vVYhile the invention islierein illustrated seaming machine, or almachine in which cross stitches are made, two fabrics Whose edges are abutted being united by: the stitches, substantially as shown in Fig 5 of Patent 506,525, to G. D. l\[unsing,'still I do not wish to be limited thus in its application, for so far asthe main features are concerned, I do: not wish to be restricted to,

any particular type of'sewing machine, or type of stitch forming mechanism.

v The invention consists in the matters hereinafter described and referred to in the appended claims. 1

y The invention is illustrated in the accompanying drawings, in which Fi'g'ure l is --a front elevation of a sewing machine of the Union Specialtriple'inten' lock type, and embodying my invention; Fig. 2 is a sectional View on line 22 of Fig. 1; Fig. 3 is a plan View of a portion of the working parts below the bedp-late, and illustrating the feeding mechanism; Fig. 4 represents in perspective the left hand portion .of Fig.1, showing a fabric in POSI- tion to be SEXVBtl', Fi 5 is a detached view of the auxiliary feed, and its supporting bar or frame; and Fig. 6*i's a View similar to Fig. 2, showing means for adjusting the auxiliaryfeedh, I

In understandingthese drawings, refer- .ence ismadeto the Union Special triple interlock machine, as 'il lustrated .in-Patent 506,524, above referred to, and; to patent to Mather & -Dearborn-, 299,568, of June 3,

1884, which latter illustrates the-main feeding mechanism, myauxiliary feeding mechanism belng usfid lnCOHJtUIlCtIOIl lEhe1BWltl'1. A representsthe frame of; the machine,

,whi chi is of Y ord inary, constru cti on.

,B is the mainshaft, C the needle arm lever.

the. looper coiiperatii-lg with 1 the needles to form stitches. hree needles I) are used pass- .ing dovv'nthrough the fabrics three parallel .rowsof loops, which aresecured on the un- 'der side of the fabric by the looper thread,

as applied to what may be termed an over- 1 thus uniting the abutting edges of two pieces ,1) the needle v bar actuated thereby, and a of fabric E and F, as shown in Fig. 5, of

-ing shaft B, and a downwardly depending piece E secured to the arm E pro ects beneath the cam-L. All'this is substantially the same as in Patent 299,568, the vertical movementsof the feed do carrying bar and feed dog I being efi'ecte by means of the cam L, and the horizontal movements by' means of the jointed crank attachment and rocking frame, as shown also in said patent, or b means of the mechanism shown in atent lssued to J. C. Goodwin, 517,141, March 27, 1894; the essential feature being the rocking frame to which the feed dog carrying bar is pivoted; the rocking frame having an oscillatory motion to draw the feed dog carrying bar back and forth horizontally, and the feed dog carrying bar being raised up and down by the cam L.

Secured to the forward end of the .feed dog carrying bar E is a bracket or block N, having an'ear or lug Oprojecting-therefrom, into which isfastened a screw P, u on which is pivoted to, one side the main ed dog, the auxiliary feed dog carrying bar Q; the feed dog 0 of which is herein shown as integral therewith. This feed dog carrying bar Q is in reality a pivoted lever and'the pivot is below the plane of the feed do sa-id'bar or frame is bifurcated vertically 21 jacent its end opposite the feed dog, as at d and embraces the driving shaft B, or if desired a block or abutment may be laced on the driving shaft to be embrace by the l fork. As the rocking frame E and arm E therefore, move to im art the four motions to the main feed do 1t will be noticed that the auxiliary feed 0g carrying frame will swing on: its ivot, and asv shown it is so arranged that it will move ahead of, or faster than the main feed dogg thuswhen as shown in Fig. 4, it bears on a piece of fabric different from'and abutting the fabric upon which the main feed dog bears, it will full orrufiie it more or less, as desired. That is as the main shaft B rotates, and the rockin frame and feed .dog carrying bar are moved by it; as the feed .dog carrying bar moves back and forth horizontally, the main shaft embraced by the fork on' the, auxiliary feed' dog carrying frame, acts as an abutment to swing the said auxiliary feed clog carrying frame on its pivot. It will thus be seen that the main feed dog and the auxiliary feed dog receive their movement from the same polnt on the'rocking frame, that is,- the pivotal connection between the bar E and the' ferential movement in the auxiliary feed dog' relative to the main feed dog. v

As a furtherand special improvement in adevice of'this kind, I have provided ameans vfor adjusting the auxiliary'feed in. a vertical plane, whereby this feed may be thrown out of operation if not desired to rufiie in one piece of fabric, or 'one side of a piece of fabric. This is illustrated in Fig. 6, in which upon the opposite side of the arm E from that on'which the auxiliary feed is supported, is pivoted at S an arm or lever R, at its forward end carrying the screw P u on which the auxiliary feed is pivoted,

.w ile at the rear end, the lever R is adjust- I able up and down by the screw T, accessible through the cloth plate of the machine. By turning out the screw T the front end of the auxiliary feed do carrying frame maybe ffeed dogwvi'll not come in contact with the work. It will also be noted lowered, so said that by adjusting the screw T, the pivot screw P will be moved further from or'nearer to the abutment engaging the bifurcated portion cl of the feed bar or frame Q. Inasmuch as the pivot screw P moves inunison 'witl. the main feed-bar and main feed dog, the auxiliary feed dog will be given a greater or less movement relative to the main feed dog, accordingly, as the pivot screw is moved toward or away from the abutment." It will be seen, therefore, that the fulling or ruflling action of the auxiliary dog may be varied and-asmb'ove noted, theauxiliary dog may be rendered ineffective if the position thereof be changed by the screw so that the movements ofthe auxiliary dog are entirely below the cloth-plate. It will of course, be understood that the auxiliary do may be adjusted vertically so as to accompiish a variation in the'throw thereof, by reason of the fact that the presser foot is the usual yielding foot and will cooperate with said auxiliary dog in its various ad= justed positions above -the\cloth ,plate.

am aware that two motion feeds are not new, and that it has been heretofore proposedin connection with an overseaming machinej to provide a rocking frame having two rock ing bars supported at different distances from the center of oscillation, one having a feed dog working in advance of the needle and the other a feed dog working in rear of a the needle, the one in front moving faster than the one in rear, the fabric ahead of the; needle being puckered to prevent curling afterward, but the operation thereof is very different from the present invention, in

which one side of the fabric is 'utlled or gathered to cause it. to equal in Width that portion of the fabric which is acted upon byv the ordinary feed, thus giving ita ruflied or fulled appearance after sewing; that is in the present invention, as applied to the work of joining two pieces of fabric, only one fabric is ruliled or gathered, while the other portionis fed in the usual Way. As

far, however, as the mechanical operating parts-are concerned, the manner of manipulating the auxiliary feed may be applied to a two motion feed technically so called, that IS a two part feeding mechanism in which one portion moves fasterthan the'other.

' Having thus described my invention, what lrlaini and desire to secure by Letters Pat-- ent, is:

1. A sewing machine including in combination a main feed bar, a feed dog carried thereby, means for operating said feed bar, an ai'lxiliaijv feed dog, means for moving said auxiliary feed dog into and out of contact with the material during each feeding movement, means for giving said auxiliary feed dog a differential feeding movement, relative to the movement of said main feed dog, a pivoted lever, and means forswinging said lever about its pivot, whereby said relativcly differential movement of the auxiliary feed dog may be rendered ineffective.

2. A. sewing machine including in combination, a main feed bar, a feed dog carried thereby, means for operating said feed bar, an auxi iary feed dog, means for, moving said auxiliary feed dog into and out-of contact with the material during each feeding movement, means for giving said auxiliary feed dog a diflerential feeding movement relative to the movement of said m'ain' feed dog, a pivoted lever constructed to move bodily with said main feed bar and means for swinging said lever about its pivot, \vhereby'said relatively differential movement of the auxiliary feed dog may be rendered inetl'ective.

3. A sewing machine including in conibi nation a main feed dog, means for operating the same, an auxiliary feed dog, a feed bar supporting the same. means for moving the auxiliary feed dog into and out of contact Witlithe material during each feeding mover'nent,.1neans for giving said auxiliary feed dog a differential movement relative to the main feed (log, and a lever operating through the auxiliary feed. dog bar for moving said dog out of contact with the material, whereby'its feeding action is rendered ineffective,

4. A sewing machine'includin z in combination, a main feed bar, a feed dog carried thereby, an auxiliary feed bar supported by sa id main feed bar and moving vertically in unison therewith, an auxiliary feed dog'carried by said auxiliary feed bar, means for feed bar, and means for swinging-said lever about its pivot, whereby said relatively differential feeding'movement of the auxiliary feed dog, may be rendered.ineffective.

si awving machine including in combi- .nation a i'ockin frame, a main feed dos 7 s, a.

means for moving said main feed. doghorizontally from said rocking'franie, an auxiliary feed dogmeans forgiving'said aux- -iliary feeddog a differential feeding moveiiient from said rocking" frame, a lever moving back and forth with said rocking frame, and connected to said auxiliary feed dog, whereby said auxiliary feed dog, may

be moved outof contact with the material,

and its feeding action rendered ineffective.

6. In a sewing machine, a driving shaft,

a rocking frame, a main feed dog carrying; bar pivoted thereto, a feeddog carried by said bar, a' rocking feed dog carrying bar, pivoted to the main feed dog carrying bar, a feed'dog carried by said rocking feed bar, said rocking'rfeed dog being so disposed as to move in aplane parallel to the mo-ven'ients of the main feed dog, andrmea ns for oscillat ing said rocking feed dog bar on its pivot, 'nhereby the rocking feed dog has a differential movement with respect to the main feed dog.

7. In a: sewing machine, a driving shaftja rocking frame, a main feed dog carrying; bar pivoted thereto, a feed dog carried thereby, a rockingfeed dop; carrying'bar. movableon the main feed dog carrying bar. said rocking feed dog and said main feed dog icing constructed to move in parallel vertical planes and means for oscillating saidrocking feed dog, whereby it has a -differential movement, with respect tothe main feed do 8. In a sewing machine, a feeding device including a niain feed dog carrying bar, and a feed dogsupported thereon, anauxiliary feed dog bivotally attached at the forward end of said feed dog carrying bar said auxiliary feed dog and said main feed dog being constructed, to move in parallel vertical jplaiies, and means-for impartiiig motion to 'the main feed dog carrying bar, aiidsinuiltaiieously i'nipa rting a differential inotionfto the auxiliary feed dog; substantially as described. f v I 9. In agsewing machine, feeding mechanism i icliiding a main frcd dog carryinglmr,

a feed dog carried thereby, a rocking frame on which said bar is pivoted, means for mov forward-end and to one sideof the main feed v(log carrying barya feed dog carried bysaid auxiliary feed bar, said auxiliary feed dog ing'said main feed dog carrying bar, an aux 'iliary feed dog carrying bar pivoted "to the I andsaid main feed dog being constructed to said bar ca a rig d nro ection a bar actuated thereby and ried'by said first bar,

parallel vertical planes and means the operation of ing the auxiliary feed dog.

10. Ina sewingmachine ha a mainfeed, an auxiliary feed pivoted t ereto, a end the swung, and means for adjusting the opposite end of said pivoteda'rm or lever, where.- by the auxiliary feed is raised and lowered substantially as described.

11. In a sewingmachine,

a driving .shaft, carryin a member acting u on the fabric, -a secon bar carried by sai first bar, andalso carrying. a second member acting upon the fabric but ,having differential movement with respect to said first named member, an abutment, ing the second member having adapted in the bodily movement of'the first bar to directly engage the abutmentand thus impart said differential vmovement to the bar carrying the secondr member saidmember being so disposed as to move in parallel stantially'as described. v

12. In a sewing machine, a driving shaft, a bar actuated thereby and carryin a member acting upon the fabric, a secon bar carand also carryin a second member acting upon the fabric%ut having. differential movement with respect to said first named member, an abutment,

1 saidbar carrying the second member having a rigid PIOJECtiOIl adapted in the bodily specti-ve fabrics, 5O

movement of the first'bar to directly engage the abutment and thusimpart said differential movement to the bar or frame carrying the second member,

isposed as to move in parallel vertical lines, and means for adjusting; the amount of re. ciprocatory movement of the second bar.

13. In a sewing machine for uniting the edges of fabrics, stitch forming mechanism comprising a series of needles adapted to pass loops of threads down through therecomplemental stitch forming mechanism, cooperating with the loops of thread upon the under side of the fabricand mechanism ,for uniting the rows of stitches upon the upper face of the fabric,

I a feeding mechanism cooperating'with the sideby side, said located in advance stitch forming mechanism, including a main feed dog and an auxiliary feed dog located auxiliary feed dog bein of the stitching oin and operating upon one piece of the abric only and moving in with the plane of feed dog, whereby one piece of fabric may be fed to the needle faster than the other fabric.

vertical planes; substitching, a feeding mechanism'cd6peratii dog located side by side, said auxiliary feed dog being located in advance ofthe stitching point, and operating upon one piece of thefabric only and-moving in a vertical plane parallel with the plane of movement a of the main feeddog, 'whereby one piece of afabric may be fed to the needle faster than the otherjfabric. V 7' 15. A differential feeding mechanism including in combination a rocking frame, means for rocking said frame, a main feed dog, a main'feed bar pivoted directly to said rockin frame, and supporting said main feed 0g, an auxiliary feed dogyand fro 7 1180 5 011 with the rockingframe as the ,main

feed bar, including devices for giving said auxiliary feed dog a differential movement said members being so relative to the main feed dog.

16. A- differential feeding mechanism including in combination a rocking frame, means, for rocking said frame, a main feed dog, a main feed bar pivoted directly to said rocking frame, and supporting said main feed dog, an auxiliary feed dog, and means for operatingsaid auxiliary feed'dog from substantially the same point of connection with the rocking frame including devices for giving saidauxiliary feed dog a diflerential 'mov'ement relative to the main feed dog, and means whereby said differential movement may be varied. 17. In a sewing machine, a main shaft,-a main 'feeding device including a mainfeed .bar, afeed dog carried thereby, an auxiliary feeding device including a feed bar, a feed a vertical plane parallel movement of the main and devices.coiiperatingwith said lever for giving to said auxiliary feed dog, a difier- 'gntial movement relative to the'main feed l S. In a sewing machine, a main shaft, a main feeding device, including a main feed bar,'a feed dog carried thereby, an auxiliary dog carried thereby, means for moving said main feed dog and said auxiliaryfeed dog vertically substantially in 'unison, means for v certain 1 of the rows 'of feeding device including a feed bar, a feed:

with the stitch-forming.mechanism in'clu a 7 ing a main feed dog and an: auxiliary feed saidauxiliary feed dog reciprocating the main feed bar, and means for giving the auxiliary feed dog feeding movements, ncluchng a pwoted lever mov- 1ng bd1ly 111 unison Wlth the mam feed bar,

dev1ces cooperating with said lever for giv-' ing; to said auxiliaryfe'ed dog a differential movement, relative to the main feed. dog,

and means for adjusting the position of said X lever 011 its pivot, whereby the differential movementimparted to the auxiliary fed dog may be varied.

19. In a sewing machine, a driving shaft, a rocking, frame, a main feed dog carrying bar pivoted thereto, a? feed dog carried thereby, an auxiliary feed dog); carryingbarsupported by the main feed dog, carrying bar,

ential movement given to the auxiliary feed dog may be varled.

20. A sewing machine including in combination, a driving shaft, :1 main feed bar, a feed dog carried thereby, means for.operating said main feed bar, an auxiliary feed dog and means for operating said. auxiliary feed dog including a. leverconstructed to move bodily in unison with the main feed bar, and means cooperating with said lever for converting the movement thereof into a [snap] ditt'erentia'llmovement infithe auxiliary feed dog; relative to the main feed dog.

21. A sewlng machine 1I1Cl-lld1ng,111 comhination a driving'shaft, a main feed bar,

a feed dog carried thereby, meansfor operating said main feed bar, an auxiliary feed dog and means for operating said auxiliary feed dog, including a lever constructed to move bodilyin unison With-the main.

feed bar, and means cooperating with said lever for converting the movementfitzhereof into a differential movement in tlie'auxiliary feed dog, relative tothe main feed dog, and

means for adj usting' said lever whereby said relatively differential movement mayv be \varied and also rendered ineffective.

A differential feeding mechanism ineluding in combination a rot'kingframe, a

pivotv on which said frame is mounted, means independent of saidpivot for rockingsaid frame, a main feed dog, an auxiliary feed dog, means foropcrating said feed dog's, including devices forgiving the auxiliary feed dog a differential movement relative to the main feed dog, said means comprising a bar supporting both dogs, said means being actuated from the same pivotalpoint on the rocking frame, which point is. located ecceutrieally to the pivot upon which'the rocking framelmoves. A

In testimony whereof I afiix my signature, in presence of two witnesses.

'ERNEST FREDERICK DURAND.

therein that the same may conform to the record of the case in the Patent Offioe.

Signed and sealed this 17m day of November, 'A. 1)., 1908. I

o. o. BILLINGS,

Acting Commissioner of Patents.

i It, is hereby certified that in Letters Patent No. 901,792, granted October 2 0, 1908, upon the application of Ernest Frederick Durand, of Paris, France, for an improve- Vmenti in Feeding Mechanism for Sewing-Machines}: an error appears in the printed specification requiring correction, as followsg In line 49, page 1 the word pulled should read fulled; and that the said Letters Patent should here-ad with this correction for giving the auxiliary feed dog feeding movements, ncluchng a pwoted lever mov- 1ng bd1ly 111 unison Wlth the mam feed bar,

dev1ces cooperating with said lever for giv-' ing; to said auxiliaryfe'ed dog a differential movement, relative to the main feed. dog,

and means for adjusting the position of said X lever 011 its pivot, whereby the differential movementimparted to the auxiliary fed dog may be varied.

19. In a sewing machine, a driving shaft, a rocking, frame, a main feed dog carrying bar pivoted thereto, a? feed dog carried thereby, an auxiliary feed dog); carryingbarsupported by the main feed dog, carrying bar,

ential movement given to the auxiliary feed dog may be varled.

20. A sewing machine including in combination, a driving shaft, :1 main feed bar, a feed dog carried thereby, means for.operating said main feed bar, an auxiliary feed dog and means for operating said. auxiliary feed dog including a. leverconstructed to move bodily in unison with the main feed bar, and means cooperating with said lever for converting the movement thereof into a [snap] ditt'erentia'llmovement infithe auxiliary feed dog; relative to the main feed dog.

21. A sewlng machine 1I1Cl-lld1ng,111 comhination a driving'shaft, a main feed bar,

a feed dog carried thereby, meansfor operating said main feed bar, an auxiliary feed dog and means for operating said auxiliary feed dog, including a lever constructed to move bodilyin unison With-the main.

feed bar, and means cooperating with said lever for converting the movementfitzhereof into a differential movement in tlie'auxiliary feed dog, relative tothe main feed dog, and

means for adj usting' said lever whereby said relatively differential movement mayv be \varied and also rendered ineffective.

A differential feeding mechanism ineluding in combination a rot'kingframe, a

pivotv on which said frame is mounted, means independent of saidpivot for rockingsaid frame, a main feed dog, an auxiliary feed dog, means foropcrating said feed dog's, including devices forgiving the auxiliary feed dog a differential movement relative to the main feed dog, said means comprising a bar supporting both dogs, said means being actuated from the same pivotalpoint on the rocking frame, which point is. located ecceutrieally to the pivot upon which'the rocking framelmoves. A

In testimony whereof I afiix my signature, in presence of two witnesses.

'ERNEST FREDERICK DURAND.

therein that the same may conform to the record of the case in the Patent Offioe.

Signed and sealed this 17m day of November, 'A. 1)., 1908. I

o. o. BILLINGS,

Acting Commissioner of Patents.

i It, is hereby certified that in Letters Patent No. 901,792, granted October 2 0, 1908, upon the application of Ernest Frederick Durand, of Paris, France, for an improve- Vmenti in Feeding Mechanism for Sewing-Machines}: an error appears in the printed specification requiring correction, as followsg In line 49, page 1 the word pulled should read fulled; and that the said Letters Patent should here-ad with this correction Correction in Letters Patent No. 901,792.

upon the application of Ernest Frederick Durand, of Paris, Frunev.

is hereby certified that in LPLtvm Patent No. 101,792, granted October 20, 1908,

for' an improvement in Feeding Mi-ullaiuism for SllWlflg-bIfiClllllCSfi an error appears in the printed spocifioation requiring correction, as folluwsz In line 49, page 1, the word pulled 5 should rmuljullerl; and that thcaairl Letters Patent should be mad with this correction therein Lhat the some may i-onl'urm ll) the rvmml of the case in the Patuut Office.

November, A. I). 1908.

C. C. BILLINGS,

A cling Commissioner of Palenls.

Signed aml smiled this 17th (l:1 of 

